Republican Gov. Bob McDonnell on April 15 vetoed the first effort from state lawmakers, sending them back to the drawing board. Four days later, a committee in the GOP-controlled House of Delegates advanced a new set of maps instead of trying to override the governor's veto.

The full House will convene at 3 p.m. to consider that measure and send it to the Senate. The Senate comes in at 5 p.m.

In his veto message, McDonnell reserved his harshest criticism for the maps drawn by the Democrat-controlled Senate. He said the Senate plan significantly increases the number of split localities and the districts are not compact, which is required by the Virginia Constitution.

Majority Leader Dick Saslaw, D-Fairfax, has told media outlets that the Senate maps meet constitutional standards. He has predicted that the Senate will simply pass the same maps. If McDonnell vetoes it again, the Senate will not make another effort.

A legislative stalemate would throw redistricting to the courts.

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